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Topic: Delta functions.
Replies: 14   Last Post: Apr 22, 2013 8:58 AM

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D Herring

Posts: 62
Registered: 8/23/06
Re: Delta functions.
Posted: Apr 14, 2013 7:16 PM
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On 04/13/2013 12:02 PM, Waldek Hebisch wrote:
> Using delta functions can lead to problems with zero divisors.
...
> which is clearly inconsistent. I wonder I there is any theory
> how to avoid such problems? I mean, what CAS can do to
> protect users from wrong results?


The conservative approach is to disable simplifications where the CAS
is unsure of their correctness. Inside an integral, it can be
evaluated appropriately. Elsewhere, it should probably be preserved
as-is.

- Daniel




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